Performance research of lanthanum-loaded dolomite catalyst for pine catalytic gasification

NIU Yong-hong; SONG Zi-zhao; LI Yi-ke; WANG Wen-cai; WEN Jian-jun; ZHENG Kun-can

doi:10.1016/S1872-5813(21)60005-1

Volume 49 Issue 1

Jan. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(1): 47-54

NIU Yong-hong, SONG Zi-zhao, LI Yi-ke, WANG Wen-cai, WEN Jian-jun, ZHENG Kun-can. Performance research of lanthanum-loaded dolomite catalyst for pine catalytic gasification[J]. Journal of Fuel Chemistry and Technology, 2021, 49(1): 47-54. doi: 10.1016/S1872-5813(21)60005-1

Citation:

NIU Yong-hong, SONG Zi-zhao, LI Yi-ke, WANG Wen-cai, WEN Jian-jun, ZHENG Kun-can. Performance research of lanthanum-loaded dolomite catalyst for pine catalytic gasification[J]. Journal of Fuel Chemistry and Technology, 2021, 49(1): 47-54. doi: 10.1016/S1872-5813(21)60005-1

Citation:

NIU Yong-hong, SONG Zi-zhao, LI Yi-ke, WANG Wen-cai, WEN Jian-jun, ZHENG Kun-can. Performance research of lanthanum-loaded dolomite catalyst for pine catalytic gasification[J]. Journal of Fuel Chemistry and Technology, 2021, 49(1): 47-54. doi: 10.1016/S1872-5813(21)60005-1

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Performance research of lanthanum-loaded dolomite catalyst for pine catalytic gasification

doi: 10.1016/S1872-5813(21)60005-1

1.
School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China
2.
Mining Research Institute, Inner Mongolia University of Science and Technology, Baotou 014010, China
3.
Inner Mongotia Key Laboratory of Efficient and Clean Combustion, Baotou 014030, China

Funds: The project was supported by the National Natural Science Foundation of China (51768054, 51764046, 51764044)，Inner Mongolia Autonomous Region Science and Technology Innovation Guidance Project (KCBJ2018077)，Inner Mongolia Natural Science Foundation (2017MS(LH)0524)，Inner Mongolia Science and Technology Department Project (20180823) and Baotou Zhongke Development Technology Limited Liability Company Project (ZK2018H003)

Received Date: 2020-08-01
Rev Recd Date: 2020-10-04
Publish Date: 2021-01-29

Abstract

Abstract

To enhance the catalytic effect of dolomite, La/Dol catalyst was prepared by impregnation modification of dolomite with La (NO₃)₃ as additive. The catalyst was characterized by BET, SEM and XRD. With pine rods as raw materials and La/Dol as reforming catalysts, the effects of gasification temperature and La amount of catalysts on the catalytic gasification of pine were compared and analyzed in a self-made two-stage biomass gasification reforming experimental furnace. The results show that a small amount of La (2%) can obviously promote the forward progress of water gas reaction and perfect the catalytic reforming effect. Under the working condition of steam flow rate of 10 g/min, 2-La/Dol catalyst and reforming temperature of 750℃, with the increase of gasification temperature, the amount of H₂ increases significantly, and the highest volume fraction of H₂ increases from 28.51% (0-La/Dol) to 41.72% (2-La/Dol). La₂O₃ in the catalyst promotes the secondary cracking of tar. As a result, the tar content of liquid phase product is obviously reduced, and the number of functional groups is also reduced. La₂O₃ on dolomite surface occupies active sites, so carbon filaments are not suitable for accumulation and carbon deposition is inhibited. Carbonate (La₂O₂CO₃) in the catalyst can react with carbon to slow down the carbon deposition on the surface and improve the activity and service life of the catalyst.
- biomass,
- La/dolomite catalyst,
- catalystic gasification,
- steam gasification

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References(22)

References

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